Here are the pictures of brake systems. These are from two sources, Old Farms by John Vince and Conestoga Wagon: 1750 -1850 by Shumway, Durell and Frey.. They were called, chain brakes, drop chains, locking chains, hip chains, rough locks, and wheel chains, depending where you were.To get the full picture double click on it.[img][/img][img][/img]